Machine for driving metal dowels



Aug. l0 1926.

' 'HAC'HINE FOR DRIVING METAL DowELb Filed July; 50.1925 2 sheets-sheet 2 W lL A l q w y 1111// *i Y 1,595,541 A. C. HAUCK iran STATES IPATENT OFFICE.

ANDREW C. HAUCK, OF BROOKLYN,NEW YORK, ASSIGNOR T WILLIAMSBURG WOOD HEEL COMPANY, OF BROOKLYN, NEW YORK, A CORPORATION 0F NEW YORK.

MACHNE FOR DRIVING METAL DOWELS.

kApplication filed July 3o,

This invention lrelates particularly to the reinforcement of wooden heels by the driving of a metal pin or so-called dowel therein, and the general objects of the invention are to provide a simple andpractical machine for this andV similar purposes.

More specific objects of the invention and the novel features of construction, combination and arrangement of parts which en- .10 able the attainment of the same will appear more fully as the specification proceeds.

ln the accompanying drawings forming part of this specification the invention is' i1.- lustrated embodied in a practical commercial form, but it is to be yunderstood that the structure may be varied without departure from the true spirit and scope of the invention as hereinafter defined and'claimed.

Figure 1 in the drawings is a top plan and .20 part sectional view of the machine, the sectional portion of this view being taken on substantially the plane of 'line 1*-1 of Figure 2.

Figure 2 is a side elevation'of the machine with the feed hopper appearing insection.

Figure 3 is a verticalsectional view on4 substantially the plane of line 3-3 of F ige ure 2. v

Figures a and 5 are similar views on substantially the planes of lines 4-4 and 55 of Figure 2.

Figure 6 is a detached perspective view of.

the operating slide.

In the present disclosure the dowels 7, ofy proper length, are automatically-fed from a hopper 3 down through a feed chute 9 into position, one at a time, in front of a plunger 10 whichdrives the dowel into a seat provided for it in the heel 11 positioned on the work, rest or holder 12.

rlhe hopper is made up of an outer partly cylindrical stationary casing having a discharge slot 13 in the bottom thereof opening into the top of the vertical feed chute 9, with an open drum 14v rotatably supported within suoli casing` and provided in its annular wall with a plurality of slots 15 of slightly larger size than the dowels being handled.V This slotted drum voperates to individualize and line up the dowels with the feed chute and is shown as fixedk by screws 1ba to a hub 16 journaled in the back wall of the casing and as having its front wall 70 pivotally supi923. g serial No. 654,524.

ported on the shaft 71, fixed in `the front wall vof the hopper casing.

The top ofthe hopper and drumare shown 1n Figure2 as open for the` purpose vof charging the hopper. and in Figure 3 a segmental guard 17 is shown as supported by the lower part of a segmental wall 17 a, in position overstanding the rim or annular wall of the slotted drum so as to break the fall of the dowels thrown into the hopper, and provide, with the lower wall of the casing, a segmental channel 18 extending over the top of the feed chute and of a size topass only a single dowel. From Figure 3 it Willbe seen thatl the dowels will roll olf the ends ofthis guard into the slots in the drum and be carried-therebythrough the passage beneath the guard and into the top of the feed chute.

At the bottom of the feedV chute the dowels come to rest in a seat 19 which as shown in Figure 2 is in line with the driving plunger 10 and isy open at both ends to permit the entryof the plunger at one end and the exit of the dowel at the opposite end.

In thissame view The drive plunger is shown as carried by a slide 20 reciprocating in guides 21 and actuf ated by a lever 22 pivotally supported at 23. This lever` may be provided with a pedal-at its flowerend so as to be operated by foot.

per end of the power lever andslide is pro-l vidediin the illustration by a 'pin 25 extending from opposite sides of theslide into engagement with rectangular bearing blocks 26 slidably fitting in guide forks 27 at the up-A per end of the lever and spaced to stand at the oppositesides of the slide. These sliding pivot blocks are' shown as confined in The reciprocating motion of the slide is vutilized in the present disclosure to impart rotary movement to the sorting drumof the hopper, the slide being provided for the purpose with an upstanding post 29carrying a roll'30 operating in an'inclined slot 31 in a plate 32 sliding in'vertical guides 33 andhaving an offset arm 34 carrying a rack 35V which mesheswith a pinion 36 von the hub their forks by the overstanding cover plates 16. From this it will be seen that as the actuating lever rocks back and forth the cam plate 32 will be raised and lowered and the pinion will be turned to swing the feed drum and thus bring the dowels one at a time into the top of the feed chute, Figure 3 indicating this action as having been just effected.

The dowel which is about to be driven is preferably segregated from those above it, by means consisting in the present illustration of a cross slide 39 operating in a guide 40 intersecting the lower end of the feed chute at a point just above the driving seat 19` The inner'end of this cross slide is shown in Figviure 3 as pointed or beveled at 41 so as to enter readily between the lowest and next dowel and vlift the upper column of dowels entirely clear of the bottom one.

The cross slide is actuated in the present disclosure from the main driving slide through the medium of a rock lever 42 pivoted at 43 and engaging at one end with a pin 44 on the cross slide and having its opposite end positioned to be actuated by a dog 45 carried by the main slide. This dog is shown as pivoted at 46 on a stud 47 projecting from one side of the upstanding post 29 onthe slide and as yieldingly held against a stop shoulder y48 on the stud by the spring V49. rthis pawl thus can yield' on the forward stroke of the main slide and so during such movement it rides up over a shoulder 50 on the inner edge of the rock lever and over the top of such lever until at a point substantially at the end of the forward stroke of the slide it drops down in front of the cam shaped forward edge 51 of the lever, substantially as indicated by the dotted lines in Figure 1...

Upon the return stroke of the main slide the dog bears against the, stop 48 and so operaftes as a rigid abutment which by its travel over the inclined edge 51 rocks the lever 42, so as to draw out the ycross slide ant permit the column of dowels in the feed chute to drop. As the main slide approaches therearward or outward end of its stroke the dog passes yfree of the end of the rock lever', as will be clear from Figure 1, thereby permitting the spring 52 to assert itself and draw the cross slide inwardly so as to separate and lift the column of dowels off the lower dowel, as in Figure 3, leaving the lower dowel positioned in its seat ready to be driven upon the next stroke of the driving plunger.

It will be clear from th-e description thus far that while both the dowel feeding and` of driving the dowel into the heel or other article.

The work holder 12, which, in the present disclosure is designed for the support of a wooden heel, is shown in the form of a` block pivotally adjustable about a stud 53 on which it is removably held by a cap screw 54 and secured in its different angularl'y adjustedjpositions by a set screw 55.

ln the illustration the, stud or post 53 is vertically guided in a socket 56, being shifted therein by an adjusting screw 57 shown in Figure 5 as rotatably held in the bottom of the socket and having a screw-threaded engagement in the bottom of the post. in this view the socket is indicated as ofV split construction, having its two parts-,secured together by a bolt 58 which serves to lock the post in the position to which it has been adjusted by screw 57.

A back and forward adjustment ofthe work holder with respect to the dowel driver is also provided in the illustration by mounting the work holding post in aV block orcarriage 59 slidable in a guideway 60' and having a lug 61 engaged by a screwl 62 which is rotatably held in an open bearing 63 on the base of the machine. Une side of the guideway is shown as provided by a clamp block 64 (Figure 5) having an inclined face overstanding the correspondingly inclined face of the base` 59, which clamp is adjusta ily secured by a screw bolt 65. Upon loosening this screw bolt it will be seen that the base can be shifted toward or away from the dowel driver by means of adjusting screw 62, to suit different lengths ofdowels, for instance, and. that as soon as the proper adjustment is secured, the base may be fas-- tened in that relation by means of the clamp described.

To enable proper positioningv of the heel or other article upon the work support, an;

To adapt the machine to the handling of Y dowels of different length the hopper may be equipped with a gage plate shown at 72 in Figure 2 as adjustably secured upon the shaft 71 in opposition to the segmental wall 17, By the relative adjustment of these two walls it will be seen that dowels of longer or shorter vlength can. be accurately positioned within the hopper.

Similarly, 'the feed chute 9 may be adjusted for different lengths of doWels by providing it With an end Wall or plate 73 slidably guided on pins 74 and clamped in adjusted relation bet-Ween the side Walls of the chute (Figure l) by a screvT 7 5 Which clamps the sides of the chute together upon this intervening gage plate.' This gage plate, it Will be understood, is adjusted in accordance With the adjustment ofv the end gage 72 of the hopper.

The hopper and feed chute in the construction shown are both detachably mounted upon the supporting frame, the hopper being carried by the brackets or standards 7 6 secured on the base by screws 77, and the chute being attached to the bottom ofthe hopper and fitting at its lower end into a slot 7 8 provided for the purpose in the base or supporting frame. It will be seen from this that after removal of the screws 77the hopper and feed chute may be lifted entirely free of the ymachine for the purpose of emptying out the doWels and adjusting it for other length doWels, for instance. This removability is f particularly advantageous in facilitating accurate adjust-nient of the hopper and feed chute, one With respect to the other.

What I claim is l. In a machine of the character disclosed, a reciprocating slide, a drive plunger carried thereby, a seat open at the top and in longitudinal alinement With saidplunger, a delivery chute over the open top of said seat, a supply hopper having a delivery drum with slots for registering With .the head of the chute and connections from the slide for imparting rotary movement to the delivery drum.

2. In a machine of the character disclosed, a reciprocating slide, a drive plunger carried thereby, a seat open at the top and in longitudinal alinement with said plunger, a delivery chute over the open top of said seat, a vsupply hopper having a Y delivery drum with slots for registering With the head of the chute, connections from the slide for imparting rotary movement to the delivery drum, a cut-off slide intersecting the lower end of the delivery chute and connections from the main slide for operating said cut-off slide.

3. A combination as in claim l With a cut-off slide intersecting the lower end of the delivery -chute and operating connections from the main slide for said cut-ofiI slide, the operating Vconnections for both the delivery vdrum and cut-offp slide being effective for operating said devices upon the retractive or return stroke of the main slide.

4. In a machine of the character disclosed, a supply hopper having a stationary casing With a discharge outlet in the bottom of the same, a segmental guard overstanding said outlet and adelivery drum having an With the plunger'and connections from theV reciprocating plunger for imparting intermittent rotary movements to the delivery drum. 'Y f 7 A combination as in claim 4 With va delivery chute in line with theoutlet passage, a cut-off slide at thefootl of said rdelivery chute and av rock lever actuated by the main slide andhaving a connection Withr the cross slide. f

8. A combination as in claim 4 withy a delivery chute in line With the outiet passage, a cut-o vslide at the foot of said delivery chute and a rock lever engaged with the cross slide and having aone-Way actuating connection With the main slide. V

9. In a machine of the character disclosed, a main slide, a cross slide and connections between the tWo, including a rock lever engagedwith the cross slide and having a cam face for engagement by a yield ing paWl carried by the main slide.

10. In a machine of the character disclosed, a horizontally adjustable base, a vertically adjustable post carried thereby and a Work holder angularly adjustable and removably engaged on said stud.

11. The structure of claim 10 With a gage piece adjustable on said Work holder.

12. In combination, a hopper comprising an outer stationary casing having a discharge slot in the bottom thereof and a guard overstanding said discharge slot, a drum rotatably supported Within the casing and having a slot for registry With the discharge slot and means for oscillating said drum to carry the slot therein between the discharge slot and the overstanding guard.

13. In combination, a Vhopper having a discharge slot in the bottom thereof, a sorting drum rotatably supported Within the hopper and having a slotted rim positioned to traverse the discharge slot, a supporting shelf Within the hopper over the slotted rim of the drum and relatively adjustable end plates for gaging the ends of articles resting on said shelf.

14. The structure of claim 13 With a chute in line With the discharge slot and having an adjustable gage Wall. y

l5. In combination, a hopperv having side Walls and a discharge outlet, a stationa shaft supported at one side Walland a hub journ-aled in the other side Wall, article positioning means supported by the stationary shaft, article feeding means supported by the hub and means for imparting feeding movements to said hub.

16. In combination, a hopper having a disi charge outlet, a sorting element mounted for rotary inovements Within the hopper and having an article pocket for registry with l the discharge outlet, relatively adjustable stationary gage Walls Within the hopper and an article supporting shelf between said relatively adjustable Walls and over the dis charge outlet.

17. In a machine ofY the character dis closed, a doWel guiding passage, a driver :tor a dovvel in said passage, a feed chute for supporting a stack of the dowels in superposed order over the guide passage, a transversely operating cut-oli' slide for supportingand separating the doyvels in the staclr above the dovvel in the guide passage, a heel supporting block adjustable through a variety of angles to bring the doWel passages in the heels in line with the guide passage, a hopper above the feed chute and means in said hopper for sorting and feeding the doWels into the top of the feed chute.

18. In a machine of the character disclosed, a supply hopper having a discharge outlet, a guard over that portion of the hopper 'containing said outlet and seaced therefrom in substantial parallelism, a separator traveling in the space between the guard and discharge outlet having an article receiving poclret carried in the travel of said member trom a point clear of the guard to a point in registry With the discharge outlet to thereby transfer an article received in said pocket at a point clear of the guard, in through the space between the guard and hopper into said outlet, article transfer means for acting on the article delivered into said outlet and means for supporting a member in position to receive the article delivered by said transfer means.

in Witness whereof, I have hereunto set my hand this 16th day of July, 1923.

ANDREV C. HAUCK. 

